The Pentagon recently activated its global missile shield in anticipation of North Korea’s launch of a long-range missile, according to defense officials.

The measures include stepped-up electronic monitoring, deployment of missile interceptor ships, and activation of radar networks to areas near the Korean peninsula and western Pacific.

Three interceptor ships near Japan and the Philippines, as well as U.S.-based interceptors, are ready to shoot down the North Korean missile if space-, land-, and sea-based sensors determine its flight path is targeted at the United States or U.S. allies, said officials who spoke on condition of anonymity.

The Obama administration will regard any launch by North Korea as a violation of U.N. Security Council resolutions regardless of whether the North Koreans claim the rocket test is for space launch purposes, the officials said. The technology and rocketry used for a space launch is nearly identical to that used with ballistic missiles that carry a warhead, they said.

Also, because the payload or warhead of the test launch cannot be determined prior to launch, the Obama administration decided to activate the missile defense system.

According to U.S. officials, current intelligence assessments indicate the North Korean missile will be launched from a base called Tongchang-ri, located on a west coast peninsula north of Pyongyang between April 12 and April 15.

The missile’s first stage could impact in the Yellow Sea near South Korea and the second stage could land east of the Philippines in the Pacific.

Satellite images published Monday show preparations for the launch are continuing….

The North Korean missile’s likely flight path could take it over Okinawa.